+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   447750 (2007 HS47) Classification: Main-belt Asteroid          SPK-ID: 2447750 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1904457162158149 4.1964e-08   a 2.362845698315933 2.066e-08 au q 1.912851856992698 1.0444e-07 au i 2.703462939670493 6.7226e-06 deg node 157.3484928888444 0.00019479 deg peri 150.2061486942262 0.00019766 deg M 205.7382741467885 3.6965e-05 deg tp 2459768.969481640913 (2022-Jul-08.46948164) 0.00013866 TDB period 1326.635056484869 3.63 1.7399e-05 4.764e-08 d yr n .2713632496293875 3.559e-09 deg/d Q 2.812839539639168 2.4594e-08 au   Orbit Determination Parameters    # obs. used (total)      83      data-arc span      5548 days (15.19 yr)      first obs. used      2004-09-17      last obs. used      2019-11-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59311      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:47:43   Additional Information  Earth MOID = .896683 au   Jupiter MOID = 2.44152 au   T_jup = 3.524  [ hide covariance matrix ] Orbital Elements at Epoch 2457432.5 (2016-Feb-14.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1911865770778498 4.1834e-08   q 1.910443959959343 1.0411e-07 au tp 2457116.329815828813 (2015-Apr-03.82981583) 0.00012981 TDB node 157.3875281532448 0.00019477 deg peri 150.212720265873 0.00019761 deg i 2.703822753281673 6.7265e-06 deg   Orbit Determination Parameters    # obs. used (total)      83      data-arc span      5548 days (15.19 yr)      first obs. used      2004-09-17      last obs. used      2019-11-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59311      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:47:43   Additional Information  Jupiter MOID = 2.44152 au   T_jup = 3.524  Orbit Covariance (6×6)   e q tp node peri i e 1.750090560539938E-15 -4.302598476496192E-15 -3.077211256031791E-13 -1.523117132734239E-14 -1.286551386074403E-13 -1.546076924053978E-15 q -4.302598476496192E-15 1.083893835512898E-14 9.42950893334906E-13 6.277933260661328E-14 3.679659731219299E-13 5.101732643531943E-15 tp -3.077211256031791E-13 9.42950893334906E-13 1.684935211119211E-8 7.732538357444236E-10 4.522965375363614E-9 2.243995300452251E-11 node -1.523117132734239E-14 6.277933260661328E-14 7.732538357444236E-10 3.793430568245817E-8 -3.764847161641151E-8 7.606854697848387E-10 peri -1.286551386074403E-13 3.679659731219299E-13 4.522965375363614E-9 -3.764847161641151E-8 3.90504426610749E-8 -7.527765324398085E-10 i -1.546076924053978E-15 5.101732643531943E-15 2.243995300452251E-11 7.606854697848387E-10 -7.527765324398085E-10 4.524543506894731E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 18.1   n/a MPO450460   447750 (2007 HS47)          Discovered 2004-Sep-17 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-10-28 Alternate Designations  2007 HS47 = 2004 SA8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 06:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin